Viagra Packages To Include Anti-Counterfeit Tags

Pfizer Inc., in a move to thwart counterfeit Viagra, on Friday said it has included special radio frequency identification tags on all packages of its anti-impotence pill to verify they are the authentic Pfizer product. The world's biggest drugmaker said the new technology, which is difficult and costly to duplicate, would create barriers "for criminals who might attempt to counterfeit our products." Pfizer has previously also opposed illegal imports of authentic Viagra into the United States, where they can be sold at steeply discounted rates, but said the new technology is not designed to block such imports.